Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid
Reexamination Certificate
2005-03-22
2005-03-22
Switzer, Juliet C. (Department: 1634)
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving nucleic acid
C435S091200
Reexamination Certificate
active
06869768
ABSTRACT:
Alzheimer's disease is characterized by the presence of senile plaques formed from beta amyloid (Aβ), and neurofibrillary tangles (NTFs) formed from paired helical filaments consisting of hyperphosphorylated tau. A number of studies have shown that the NTFs correlate better with the duration and severity of Alzheimer's disease than senile plaques. However, a criticism of the primary etiological role of NTFs in Alzheimer's disease is the absence of variants of kinases or phosphatases associated with Alzheimer's disease. Acid phosphatase, a product of the ACP 1 gene, is a ubiquitous low molecular weight protein tyrosine phosphatase. A common allele, ACP 1*A, is associated with a lower activity of acid phosphatase. It is due to an Arg 105 Gln substitution of the ACP1 locus and detected as a Taq I polymorphism. We report a significant association of the low activity 2 allele with sporadic early onset Alzheimer's disease (EOAD). These findings support the possibility that other variants of kinase and genes may be associated with sporadic Alzheimer's disease.
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Comings David E.
MacMurray James P.
City of Hope
Rothwell Figgs Ernst & Manbeck
Switzer Juliet C.
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